CN201706512U

CN201706512U - Furnace for burning oil sludge

Info

Publication number: CN201706512U
Application number: CN2010202098355U
Authority: CN
Inventors: 冯党卫; 谢志海; 王升虎; 马海红; 段宝民; 刘国玺; 毛海亮
Original assignee: XI'AN HOSTECH AUTOMATION ENGINEERING Co Ltd
Current assignee: XI'AN HOSTECH AUTOMATION ENGINEERING Co Ltd
Priority date: 2010-05-31
Filing date: 2010-05-31
Publication date: 2011-01-12
Anticipated expiration: 2020-05-31

Abstract

The utility model provides a furnace for burning oil sludge. A furnace barrel, in which a smoke tube is arranged, is arranged at the upper end of a furnace body; a smoke outlet pipe communicated with the smoke tube is arranged on the lateral wall of the top part of the furnace body; a front arch and a rear arch are arranged on the inner wall of the furnace body; a coal feeding pipe is arranged on the outer wall of the front-arch side of the furnace body; a slag discharging pipe is arranged on the bottom wall of the rear-arch side of the furnace body; a furnace grate located below the front arch and the rear arch is arranged on the furnace body; an air inlet pipe located below the furnace grate is arranged on the furnace body; the included angle alpha between the bottom wall of the front arch and the level is 45 to 55 degrees; the included angle beta between the bottom wall of the rear arch and the level is 8 to 15 degrees; the distance L of the throat part between the front arch and rear arch is 920mm to 1,088mm; and the upper part between the front arch and rear arch constitutes a diffusible tube. Accordingly, the furnace of the utility model has the advantages of high burn-out rate of oil sludge balls and low environmental pollution. The furnace of the utility model is applicable in burning oil sludge balls.

Description

Oil mud burning boiler

Technical field

The utility model belongs to the burning boiler technical field, is specifically related to a kind of boiler that is used for burning petroleum greasy filth ball.

Background technology

In China's oil refining and oil recovery industry, the output of oil greasy filth is huge.Oil greasy filth is bulky, generally contain heavy metals such as a large amount of pathogens, parasite (ovum), copper, zinc, chromium, mercury, the poisonous and harmful substance of difficult degradations such as salt and Polychlorinated biphenyls, dioxin, radionuclide, and follow stench and toxicity, do not handle directly discharging if do not add, soil, water resource and vegetation are caused very big pollution, take a large amount of arable lands simultaneously, and generally contain 10%～50% heavy oil in the oil mud, these petroleum resources run off with greasy filth, are the significant wastage to resource.Therefore, no matter be to consider from environmental protection or from the angle of energy recovery, oil mud is carried out innoxious burning processing all have very important significance.

Oil greasy filth mainly contains following three kinds of sources:

The oil greasy filth that oil plant produces: the oil greasy filth of oil plant is mainly derived from oil interceptor bed mud, floation tank scum silica frost, petroleum tank bed mud, the blowdown of settling tank, secondary settlement jar, well-flushing water recycling can, and characteristics are that hydrocarbon (oil) content is high.Test result shows, in the oil greasy filth that oil plant produces, oil content is 10%～50% usually, and wherein asphalitine is 5%～10%, paraffin is 4%～12%, moisture content is 20%～40%, and with a certain amount of solids.

The oil greasy filth that oil extraction produces: the oil greasy filth that produces in the oil extraction process is mainly derived from the oil greasy filth that produces in Ground Processing System, the oil extraction-generated waste water processing procedure, and flco, equipment and the corrosive pipeline product of the water purification agent formation that adds in the sewage purification processing and the oil greasy filth of compositions such as dirty thing, bacterium (corpse).Characteristics such as this kind oil greasy filth generally has the oil content height, viscosity is big, particle is thin, dehydration difficulty, it not only influences outer output oil quality, and it is up to standard also can to cause injection water quality and externally discharged waste water to be difficult to.

The oil greasy filth that the oil field gathering and transportation process produces: the oil greasy filth that the oil field gathering and transportation process produces is mainly derived from oil-sand, the greasy filth that oil tank, settling tank, sewage jar, oil interceptor bed mud, oil plant oil-containing water treatment facility, lighter hydrocarbons processing factory, the purifying device for natural gas of block station, multi-purpose station clear out, drilling well, operation, pipeline perforation and the ground crude oil and the oil greasy filth that produce.Oil product storage tank is when storing oil product, and a small amount of mechanical admixture in the oil product, sand grains, earth, heavy metal salt and heavy oil components such as paraffin and asphalitine are deposited on tank bottom, forms the greasy filth at jar end.

More than three kinds of oil greasy filth complicated components, contain a large amount of aging crude oil, wax, asphalitine, colloid and solid suspension, bacterium, salt, sour gas, corrosion product etc., also added water treatment agents such as a large amount of flocculating agents, corrosion inhibiter, antisludging agent, bactericide in the sewage disposal process.Therefore, thoroughly do away with oil greasy filth and pollute, the conservation of nature environment reduces and administers the big technical barrier that cost of investment has become oil plant and oil recovery factory.

Existing greasy filth processing method generally is after adopting the three phase separation technology that greasy filth is separated, and isolated greasy filth is mixed by the processing of burning in the common boiler furnace of coal-burning boiler coaling system input with bituminous coal.But, greasy filth its core in combustion process causes local anoxic to cause incomplete combustion and form cigarette easily, or in lime-ash, containing carbon granules, it is easier of local anoxic causes cigarette or fuel particle double team in slag to layer combustion, thereby causes energy waste and air pollution.Inapplicable burning petroleum mud of existing boiler and oil mud ball.

In order to solve oil exploitation, oil transportation, petroleum refining process PetroChina Company Limited. mud pollution to environment, designer of the present utility model has designed oil mud ball former, oil mud is processed into the oil mud ball, and the urgent technical problem that solves of current need is to provide a kind of special boiler for burning petroleum mud and oil mud ball.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the shortcoming of existing burning boiler, provide a kind of can be with the completing combustion of greasy filth ball, oil mud burning boiler that contaminated environment is little.

Solving the problems of the technologies described above the technical scheme that is adopted is: the stove tube that smoke pipe is housed in the upper end of body of heater is provided with, the top sidewall is provided with the pipe with smoke pipe UNICOM, inboard wall of furnace body is provided with face arch and rear arch, the outer wall of the face arch side of body of heater is provided with the coal feeding pipe road, the diapire of rear arch side is provided with residue outlet, the fire grate that is positioned at face arch and rear arch below is set on the body of heater, the blast pipe that is positioned at the fire grate below is set on the body of heater, the diapire of face arch and the angle α between the horizontal plane are 45 °～55 °, the diapire of rear arch and the angle β between the horizontal plane are 8 °～15 °, the distance L of throat is 920～1088mm between face arch and the rear arch, and top constitutes the divergent contour pipeline between face arch and the rear arch.

The face arch of the utility model boiler and the diapire of rear arch are and are obliquely installed, for the abundant burning of bituminous coal and greasy filth ball provides a rational temperature field, the backflow in face arch district forms the Maelstrom of a strong turbulence, in the flame unburnt imflammable gas and scorching hot carbon granules in strong turbulence, strengthened with oxygen between turbulent flow mix, fully oxygen supply makes bituminous coal and greasy filth ball obtain completing combustion; The backflow in rear arch district makes in the flue gas coal grain and carbonaceous material further be fully burned, and has solved the technical problem of the environment thing that over-emitting black exhaust caused in the discharging waste gas, has improved the burnout rate of bituminous coal and greasy filth ball.The utlity model has advantages such as greasy filth ball burnout rate height, contaminated environment be little, can be used for the burning petroleum mud ball.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described, but the utility model is not limited to these embodiment.

Embodiment 1

In Fig. 1, the oil mud burning boiler of present embodiment is made of stove tube 1, face arch 2, smoke pipe 3, pipe 4, rear arch 5, residue outlet 6, body of heater 7, blast pipe 8, fire grate 9, feed hopper 10 connections.

The body of heater 7 of present embodiment adopts that armored concrete is integrated poured to be made, the upper end of body of heater 7 is equipped with stove tube 1, smoke pipe 3 is housed in the cylindrical shell 1, smoke pipe 3 be shaped as S shape, in the cylindrical shell 1 water is housed, carry out heat-exchanging furnace tube 3 with the flue gas of the smoke pipe 3 of flowing through, on stove tube 1 sidewall pipe 4 is installed, the smoke pipe 3 in pipe 4 and the stove tube 1 links.On the inwall of body of heater 7 middle and lower parts with body of heater 7 be connected as a single entity face arch 2 and rear arch 5, the angle α of the diapire of face arch 2 and horizontal plane is 50 °, the diapire of rear arch 5 and the angle β between the horizontal plane are 12 °, face arch 2 constitutes contracted channel with the bottom of rear arch 5, face arch 2 constitutes the divergent contour pipeline with the top of rear arch 5, constitute Lavalle shape pipeline between face arch 2 and the rear arch 5, the distance L of throat is 1000mm between face arch 2 and the rear arch 5.On the outer wall of face arch 2 sides of body of heater 7 feed hopper 10 is installed, links in feed hopper 10 and the body of heater 7, be equipped with on the diapire of rear arch 5 sides and rear arch 5 residue outlet 6 that is connected as a single entity.The below of face arch 2 and rear arch 5 is equipped with fire grate 9 with front axle and rear axle on the body of heater 7, and the fire grate 9 of present embodiment is the chain type fire grate, the input of fire grate 9 be positioned at feed hopper 10 under, output be positioned at residue outlet 6 directly over.The below of fire grate 9, between front axle and rear axle, 5 blast pipes 8 are installed uniformly at intervals along fire grate 9 directions of motion.

During burning, the oil mud ball is sent into by feed hopper 10, drop on the fire grate 9 from feed hopper 10, the oil mud ball is transported to body of heater 7 inside by fire grate 9, air enters in the body of heater 7 from blast pipe 8, the oil mud ball is in body of heater 7 internal combustion, lime-ash after the burning drops to residue outlet 6 discharges from the output of fire grate 9, combustion gas after the burning enters into the converging portion between face arch 2 and the rear arch 5, combustion gas is quickened to flow, pressure progressively reduces, in the flow velocity maximum pressure minimum of face arch 2 with throat's combustion gas of the Lavalle pipeline of rear arch 5 formations, combustion gas enters the diffuser of Lavalle pipeline, the deceleration supercharging, carbonaceous material in the combustion gas further obtains completing combustion, solved in the discharging waste gas over-emitting black exhaust cause to the technical problem of environment thing, high-temperature fuel gas enters the smoke pipe 3 in the stove tube 1 from body of heater 7 tops, in smoke pipe 3, circulate with stove tube 1 in water carry out heat exchange, cold water in the stove tube 1 becomes hot water output, and flue gas is discharged from pipe 4.

Embodiment 2

Present embodiment is as different from Example 1: the diapire of face arch 2 and the angle α between the horizontal plane are 45 °, and the angle β between rear arch 5 diapires and the horizontal plane is 8 °, and the distance L of throat is 920mm between face arch 2 and the rear arch 5.Other parts of present embodiment and the connecting relation of parts are identical with embodiment 1.

Embodiment 3

Present embodiment is as different from Example 1: the diapire of face arch 2 and the angle α between the horizontal plane are 55 °, and the angle β between rear arch 5 diapires and the horizontal plane is 15 °, and the distance L of throat is 1080mm between face arch 2 and the rear arch 5.Other parts of present embodiment and the connecting relation of parts are identical with embodiment 1.

Claims

1. greasy filth burning boiler, the stove tube (1) of smoke pipe (3) in being provided with, the upper end of body of heater (7) is housed, the top sidewall is provided with the pipe (4) with smoke pipe (3) UNICOM, body of heater (1) inwall is provided with face arch (2) and rear arch (5), the outer wall of face arch (2) side of body of heater (1) is provided with coal feeding pipe road (9), the diapire of rear arch (5) side is provided with residue outlet (6), body of heater (7) is gone up the fire grate (9) that is positioned at face arch (2) and rear arch (5) below is set, body of heater (7) is gone up the blast pipe (8) that is positioned at fire grate (9) below is set, it is characterized in that: the diapire of face arch (2) and the angle α between the horizontal plane are 45 °～55 °, the diapire of rear arch (5) and the angle β between the horizontal plane are 8 °～15 °, the distance L of throat is 920～1088mm between face arch (2) and the rear arch (5), and top constitutes the divergent contour pipeline between face arch (2) and the rear arch (5).